Home / 393,077,013,629.90-589,674,475,089.55-138,061,449,318.77

Finding the Fourth Proportional to 393,077,013,629.90, 589,674,475,089.55 and 138,061,449,318.77

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Solution

The fourth proportional to 393,077,013,629.90, 589,674,475,089.55 and 138,061,449,318.77 is: 207,112,880,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,077,013,629.90 : 589,674,475,089.55 = 138,061,449,318.77 : x
  2. Step 2: Convert to fraction form
    393,077,013,629.90/589,674,475,089.55 = 138,061,449,318.77/x
  3. Step 3: Cross multiply
    393,077,013,629.90x = 589,674,475,089.55 × 138,061,449,318.77
  4. Step 4: Simplify right side
    393,077,013,629.90x = 81,411,312,657,148,214,771,712
  5. Step 5: Solve for x
    x = 81,411,312,657,148,214,771,712/393,077,013,629.90
  6. Step 6: Final answer
    x = 207,112,880,769.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.